diff --git a/scripts/autoload/account_profile_service.gd b/scripts/autoload/account_profile_service.gd
index 88756b0..6d27b9f 100644
--- a/scripts/autoload/account_profile_service.gd
+++ b/scripts/autoload/account_profile_service.gd
@@ -318,6 +318,7 @@ func _on_auth_changed() -> void:
 	else:
 		account = {}
 		preferences = _default_preferences()
+		profile_changed.emit()
 
 
 func _cache_path() -> String:
@@ -331,6 +332,7 @@ func _load_cache() -> void:
 	if typeof(parsed) == TYPE_DICTIONARY:
 		preferences = parsed.get("preferences", _default_preferences())
 		preferences_pending = bool(parsed.get("pending", false))
+		profile_changed.emit()
 
 
 func _save_cache(pending: bool) -> void:
diff --git a/scripts/ui/main.gd b/scripts/ui/main.gd
index 33a6a58..369c05d 100644
--- a/scripts/ui/main.gd
+++ b/scripts/ui/main.gd
@@ -5,6 +5,7 @@ const Brand := preload("res://scripts/ui/medmind_style.gd")
 const NavigationRoutes := preload("res://scripts/ui/navigation_routes.gd")
 
 var screens := {}
+var _account_profile_synced := false
 var header_panel: PanelContainer
 var header_title: Label
 var environment_badge: Label
@@ -755,6 +756,12 @@ func open_legal_document(kind: String) -> void:
 
 func _on_auth_changed() -> void:
 	_refresh_header_controls()
+	if AuthState.is_logged_in:
+		if not _account_profile_synced:
+			_account_profile_synced = true
+			AccountProfileService.refresh()
+	else:
+		_account_profile_synced = false
 	if AuthState.is_logged_in and AuthState.requires_legal_acceptance and current_screen_name not in ["login", "legal_consent"]:
 		show_screen("legal_consent")
 
diff --git a/scripts/ui/settings_screen.gd b/scripts/ui/settings_screen.gd
index 607f545..7de9f93 100644
--- a/scripts/ui/settings_screen.gd
+++ b/scripts/ui/settings_screen.gd
@@ -1,10 +1,15 @@
 extends VBoxContainer
 
 const Brand := preload("res://scripts/ui/medmind_style.gd")
+const QUESTION_TEXT_SCALE_MIN := 0.85
+const QUESTION_TEXT_SCALE_MAX := 1.35
+const QUESTION_TEXT_SCALE_STEP := 0.1
 
 var main: Control
 var theme_toggle: CheckButton
 var sound_toggle: CheckButton
+var question_scale_value_label: Label
+var ccs_scale_value_label: Label
 
 
 func _ready() -> void:
@@ -52,6 +57,9 @@ func _ready() -> void:
 	sound_toggle.toggled.connect(UISoundService.set_sounds_enabled)
 	content.add_child(sound_toggle)
 
+	content.add_child(_build_text_scale_row("Question bank text size", "question"))
+	content.add_child(_build_text_scale_row("CCS case text size", "ccs"))
+
 	var legal_panel := PanelContainer.new()
 	legal_panel.custom_minimum_size = Vector2(520, 0)
 	legal_panel.size_flags_horizontal = Control.SIZE_SHRINK_BEGIN
@@ -74,11 +82,73 @@ func _ready() -> void:
 		legal_content.add_child(button)
 
 	UIThemeService.theme_changed.connect(_on_theme_changed)
+	AccountProfileService.profile_changed.connect(_refresh_text_scale_labels)
+	CCSService.text_scale_changed.connect(_refresh_text_scale_labels)
+	_refresh_text_scale_labels()
 
 
 func on_show(_payload: Variant = null) -> void:
 	theme_toggle.set_pressed_no_signal(UIThemeService.is_dark_mode())
 	sound_toggle.set_pressed_no_signal(UISoundService.are_sounds_enabled())
+	_refresh_text_scale_labels()
+
+
+func _build_text_scale_row(label_text: String, kind: String) -> HBoxContainer:
+	var row := HBoxContainer.new()
+	row.custom_minimum_size = Vector2(0, 52)
+	row.add_theme_constant_override("separation", 12)
+
+	var label := Label.new()
+	label.text = label_text
+	label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+	row.add_child(label)
+
+	var smaller := Button.new()
+	smaller.text = "A-"
+	smaller.tooltip_text = "Decrease text size"
+	smaller.custom_minimum_size = Vector2(44, 44)
+	row.add_child(smaller)
+
+	var value_label := Label.new()
+	value_label.custom_minimum_size = Vector2(56, 0)
+	value_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
+	row.add_child(value_label)
+
+	var larger := Button.new()
+	larger.text = "A+"
+	larger.tooltip_text = "Increase text size"
+	larger.custom_minimum_size = Vector2(44, 44)
+	row.add_child(larger)
+
+	if kind == "question":
+		question_scale_value_label = value_label
+		smaller.pressed.connect(_adjust_question_text_scale.bind(-QUESTION_TEXT_SCALE_STEP))
+		larger.pressed.connect(_adjust_question_text_scale.bind(QUESTION_TEXT_SCALE_STEP))
+	else:
+		ccs_scale_value_label = value_label
+		smaller.pressed.connect(_adjust_ccs_text_scale.bind(-CCSService.TEXT_SCALE_STEP))
+		larger.pressed.connect(_adjust_ccs_text_scale.bind(CCSService.TEXT_SCALE_STEP))
+	return row
+
+
+func _adjust_question_text_scale(delta: float) -> void:
+	var current: float = AccountProfileService.preferences.get("questionTextScale", 1.0)
+	var next_scale: float = clamp(current + delta, QUESTION_TEXT_SCALE_MIN, QUESTION_TEXT_SCALE_MAX)
+	AccountProfileService.update_text_scale(next_scale)
+	_refresh_text_scale_labels()
+
+
+func _adjust_ccs_text_scale(delta: float) -> void:
+	CCSService.adjust_text_scale(delta)
+	_refresh_text_scale_labels()
+
+
+func _refresh_text_scale_labels() -> void:
+	if question_scale_value_label != null:
+		var question_scale: float = AccountProfileService.preferences.get("questionTextScale", 1.0)
+		question_scale_value_label.text = "%d%%" % round(question_scale * 100)
+	if ccs_scale_value_label != null:
+		ccs_scale_value_label.text = "%d%%" % round(CCSService.text_scale * 100)
 
 
 func _on_theme_toggled(enabled: bool) -> void:
diff --git a/tests/settings_screen_test.gd b/tests/settings_screen_test.gd
new file mode 100644
index 0000000..95c178f
--- /dev/null
+++ b/tests/settings_screen_test.gd
@@ -0,0 +1,69 @@
+extends SceneTree
+
+var failures := 0
+
+
+func _initialize() -> void:
+	call_deferred("_run")
+
+
+func _run() -> void:
+	var account_profile = root.get_node("AccountProfileService")
+	var ccs_service = root.get_node("CCSService")
+	var prior_preferences: Dictionary = account_profile.preferences.duplicate(true)
+	var prior_ccs_scale: float = ccs_service.text_scale
+	account_profile.preferences["questionTextScale"] = 1.0
+	ccs_service.text_scale = 1.0
+
+	var host := Control.new()
+	root.add_child(host)
+	var screen = load("res://scripts/ui/settings_screen.gd").new()
+	screen.main = host
+	host.add_child(screen)
+	await process_frame
+
+	_assert(screen.question_scale_value_label != null, "settings should expose a question bank text size control")
+	_assert(screen.ccs_scale_value_label != null, "settings should expose a CCS case text size control")
+	_assert(screen.question_scale_value_label.text == "100%", "question bank text size should start at 100%")
+	_assert(screen.ccs_scale_value_label.text == "100%", "CCS case text size should start at 100%")
+
+	_assert(_find_button(screen, "A+", 0) != null, "question bank row should have an A+ button")
+	_assert(_find_button(screen, "A+", 1) != null, "CCS row should have an A+ button")
+
+	var prior_profile_api_url: String = ProjectSettings.get_setting("step3/profile_api_url", "")
+	ProjectSettings.set_setting("step3/profile_api_url", "http://127.0.0.1:1")
+
+	# Call the handlers directly rather than emitting Button.pressed - the real
+	# signal path also fires UISoundService's click sound, whose OGG playback
+	# doesn't release cleanly before this short-lived headless process exits.
+	screen._adjust_question_text_scale(0.1)
+	_assert(is_equal_approx(float(account_profile.preferences.get("questionTextScale", 1.0)), 1.1), "question bank A+ should increase the synced scale")
+	_assert(screen.question_scale_value_label.text == "110%", "question bank text size label should reflect the new scale")
+
+	screen._adjust_ccs_text_scale(0.1)
+	_assert(is_equal_approx(ccs_service.text_scale, 1.1), "CCS A+ should increase the shared CCS text scale")
+	_assert(screen.ccs_scale_value_label.text == "110%", "CCS text size label should reflect the new scale")
+
+	ProjectSettings.set_setting("step3/profile_api_url", prior_profile_api_url)
+	host.queue_free()
+	await process_frame
+	account_profile.preferences = prior_preferences
+	ccs_service.text_scale = prior_ccs_scale
+	quit(1 if failures > 0 else 0)
+
+
+func _find_button(root_node: Node, text: String, occurrence: int) -> Button:
+	var found := 0
+	for node in root_node.find_children("*", "Button", true, false):
+		if node.text == text:
+			if found == occurrence:
+				return node
+			found += 1
+	return null
+
+
+func _assert(condition: bool, message: String) -> void:
+	if condition:
+		return
+	failures += 1
+	push_error(message)
diff --git a/tests/settings_screen_test.gd.uid b/tests/settings_screen_test.gd.uid
new file mode 100644
index 0000000..8aedcff
--- /dev/null
+++ b/tests/settings_screen_test.gd.uid
@@ -0,0 +1 @@
+uid://dysbx2e58xwm8